as you know there was a public safety exemption before he was read his miranda rights. so there was time when law enforcement had the opportunity to talk to him before he had quote/unquote lawyered up. but we don't know yet whether or not this information came before he said he understood his rights, or after. >> all right, jake tapper, terrific reporting. great to have you here this morning. >> thanks, john. >> don't miss "the lead" every day at 4:00. we're also learning more this morning about -- we're learning more this morning about criminal complaints against tsarnaev detailing step by step how the deadly attack on the boston marathon unfolded. our coverage continues this morning with miguel marquez outside best israel deaconess medical center right here in boston. good morning, miguel. >> good morning, john. this is the criminal complaint that contains what we expect are the first charges. we'll see many more against mr. tsarnaev. in the criminal complaint, investigators built a minute by minute account of the tsarnaev brothers as they moved the crowds at the mara